... of soil and various crops, in particular, avoid chloride, potassium chloride potassium replacement, a good potash. Their specific use are: (1 ... drawback is easy to produce hydrogen sulfide poisoning. (2) potassium sulfate prices are more expensive, in general, in addition ... to avoid chlorine plant, the Can not use potassium chloride to potassium sulfate. (3) of the cruciferous crops, more ...